If you download the app above, you’ll notice it is in the *.xap format, which is the format for all Silverlight based Windows Phone 7 mobile apps. Perhaps you’ve never side-loaded a WP7 app before or perhaps you don’t have a Windows Phone 7 device. Fear not! If you have the Windows Phone 7 developer tools, you can load the app to your emulator and just run it from there.

The following 90 second video show you how. It really is so easy that it takes less than 90 seconds.